I had 10 impressions and 7 clicks on one page the other day thought I was going to get invalid clicks but its all still there!
even if they are from the same ip i really think google looks to see if its a reoccurring problem before they do anything. Kind of like a dog that pees on your floor for the first time. Let it slide and see if it will happen again if it does than punishment..?
LOL !!! But as funny as that is I agree with him If the same thing keeps happening then yes I would say there is some great injustice going on. (Click Bombing Cough) But if it's a one time thing or one or twice thing then no big deal your CTR should be really high
AdSense will not pay attention to such a small amount. Send them a mail, but it won't affect you in any way.
It's not dodgy unless those numbers are 10-50 times that. i.e. 40 impressions and 30 clicks - that is odd. The stats you report are possibly just from one visitor, so not too odd. I'm sure if this isn't frequent Google won't complain.